1970 Cowl Vs Engine dates

Discussion in '1970 - 1973 Specific' started by 1970_Z28_503, Apr 14, 2017.

  1. 1970_Z28_503

    1970_Z28_503 Member

    66
    5
    Apr 12, 2017
    Oregon
    3970010 block with a April 28 1970 Casting date, 05D Cowl tag all seem correct yes?

    not sure how you get a 06 07 date stamp on front pad though. What other engine could you get a M22 and 12 bolt with in 1970?

    Something is up..
     

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  2. l16pilot

    l16pilot Veteran Member Lifetime Gold Member

    1,475
    54
    Dec 13, 2004
    Hurlock, MD, USA
    ...I agree with Smokin'Joe....it's likely the block was decked and the rebuilder tried to re-apply a code...maybe from memory?...who knows. The block casting date looks good for your car's build date. Yeah, I think they key is if you can find the vin by the oil filter. It might be the original block, just going to take more digging to be sure.

    350/300, 396/350 and 396/375...all with the SS option. I believe the M22 was available with any model, but the 12 bolt was Z28 and SS only.
     
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  3. restore-z28

    restore-z28 Veteran Member

    227
    18
    Jul 4, 2010
    Vancouver, BC
    I also share the sentiment this block is original but was decked at some point in it's life and re-stamped. The casting date lines up for this build date and the trim tag looks legit. When you inspect the car try to look the partial vin in the rough casting by the oil filter boss. I have little doubt in my mind from what you have posted this is a real '70Z with the M22 trans, that stamp also looks legit to me along with the read end. Just double check the other numbers on both the trans and rear end.

    Best of luck during your inspection.
     
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  4. 1970_Z28_503

    1970_Z28_503 Member

    66
    5
    Apr 12, 2017
    Oregon
    If the Heads are 492 as the appear then the chances are that block was decked when they replaced them, that is kind of what I think happened. I will hopefully find that partial Vin on the bellhousing and confirm it all.

    Pics of the car.. 00D0D_fD7zGWz0BDH_1200x900.jpg 00j0j_bbXawRze1lx_1200x900.jpg 00X0X_hdRMHDi0wtI_1200x900.jpg 1970-camaro-rsz28-1.JPG
     
  5. l16pilot

    l16pilot Veteran Member Lifetime Gold Member

    1,475
    54
    Dec 13, 2004
    Hurlock, MD, USA
    Nice looking car. You do not see Green Mist (45) often and I like it. :)
     
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  6. 70lt1z28

    70lt1z28 Veteran Member Gold Member

    1,169
    128
    Oct 3, 1999
    Beavercreek, Ohio, USA
    Shifter looks interesting. Did non-console cars have straight shifter handles?
     
  7. 70 SS/L78

    70 SS/L78 Veteran Member Lifetime Gold Member

    2,314
    29
    May 5, 2005
    Rockford, MN
    No, All Z28's and SS 4-speed cars used the same Hurst shifter, console wasn't a factor.

    I'm a little late to the discussion but that block is definitely a re-stamp. Hopefully you'll find the VIN by the oil filter, that's where Z28's & L78's were stamped on Norwood cars. My VIN is actually readable but it was stamped in 2 locations on bell housing flange.

    The closet dates I've seen between engine/car is where the engine was built the same week as the car.
     
    Last edited: Apr 17, 2017
  8. 1970_Z28_503

    1970_Z28_503 Member

    66
    5
    Apr 12, 2017
    Oregon
    I found this
     

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  9. 70lt1z28

    70lt1z28 Veteran Member Gold Member

    1,169
    128
    Oct 3, 1999
    Beavercreek, Ohio, USA
    That's what I was bought on the shifter.
    Maybe it's just the angle or the steering wheel in the way, but the shifter looks like a straight rod, no bend back.
     
  10. l16pilot

    l16pilot Veteran Member Lifetime Gold Member

    1,475
    54
    Dec 13, 2004
    Hurlock, MD, USA
    I agree with Scott...same shifter handle in 70 regardless of console or not for the Camaro with the 7433 stamped into the handle base. Can't comment on it being correct for the Firebird. the 71 handle looked the same, but had slightly longer threads at the top....don't recall the 4 digits stamped into the base.

    As for the shifter handle in the car 70_Z28_503 is looking at, I think it's just the angle of the photo.
     

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